Every time Film Brain says "alligator", his mouth is clearly saying "crocodile." This was due to Mathew Buck incorrectly identifying Mad Maggie as a crocodile instead of an alligator, and thus dubbed over the mistake.
Film Brain: [about Joe and Gus's "catchphrases"] They put them in so often I do wonder if they actually thought people would walk out of the film quoting them. It's a ten plus on the irritating scale. Borderline infuriating.